Chain



, State of New York, have invented a new vto the accompanying drawings,forming a UNTTED STATES PATENT OFFTCE.

JOHN BLOGHER, OF IVILLIAMSVILLE, NEW YORK.

CHAIN.

Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, Jer-1N BLOOHER, of Williamsville, in the county ofErie and and useful Improvement in the Construction of Chains; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had part of this specification,in Which- Figure l represents a side view. Fig. 2, a front view, andFig. 3, a central section of the chain. Fig. l is a sectional view of asingle link, and Fig. 5 shows the chain when applied to a drinn.

Similar letters of reference in each of the several figures indicatecorresponding parts.

The nature of my invention consists in the combination of the knee ofone knife edged link with the slot of another knife edged link for thepurpose of forming a chain, the links of which cannot detach themselvesfrom each other.

To enable others, skilled in the art, to lnake and use iny invent-ion, Iwill proceed to describe its construction and operation.

The chain is formed of a succession of links A,A,and B,B,the ends ofeach link being bent in opposite directions as seen in Figs. l and 3.The curved portion of each link end represents a semi-circle. The curvedend of one link is hung into the curved end of the next link and so onso as to form a continuous chain.,

The curved end s are all knife'edged, as seen at a, b. The edge of onelink rests on the hollow surface of the next link. The inotion of onelink in relation to the next one is a swinging motion, the fulcrum ofwhich is the knife edge of the end of one of the two links. This motionis attended with 30,797, dated December 4, 1860.

very little friction, if any, and thus the chain is made to possess ahigh degree of flexibility. If the c urved surface of the end of onelink were made to reston and slide in Contact with the curved surface ofthe other link, the two surfaces of a certain extent being in contactwith and sliding upon each other, would create considerable friction andcorrespondingly diminish the ilexibility ofthe chain.

To lock the links together so that they cannot detach themselves fromeach other in the line of the length of the chain and laterally to thisline, a narrow knee D, D, is rivetedfat I-to the upper end of thestraight part of each link. One half of the knee D, extends through aslot H, in the upper end of the straight part of the link, and lits intoa corresponding slot C, in the curved portion of the lower end of thenext link, as seen in Fig. 3, the knife edge B, of the curved end B. oflink B, being in contact with the upper surface of the part D, of

the knee, whereby the two links are locked together so that they cannotdetach themselves from each other, without interfering with the freemotions of each link around the fulcruin formed by the knife edges, asabove described.

IVhat I claim as my invention and desire to secure by Letters Patent, is

The combination of the knee D, D, of one knife edged link B, B, with aslot C, of another knife edged link A, A', for the purpose of forming achain, the links of which cannbt detach themselves from each other,substantially as set forth.

JOHN BLOOHER.

Witnesses vGrooDwIN Y. AT LEE,

G. F. Gr. DIETERIOH.

